Class 300 Long Weld Neck Flange Dimensions

Size in Inch	Size in mm	Outer Dia.	Flange Thick.	Hub OD	Weld Neck OD	RF Dia.	RF Height	PCD	Hub Length	No of Bolts	Bolt Size UNC	RF Stud Length	Hole Size	ISO Stud Size
		A	B	C	D	E	F	G	H
1/2	15	95	12.7	38	21.3	34.9	2	66.7	as per requirement	4	1/2	55	65	5/8	M14
3/4	20	115	14.3	48	26.7	42.9	2	82.6	as per requirement	4	5/8	65	75	3/4	M16
1	25	125	15.9	54	33.4	50.8	2	88.9	as per requirement	4	5/8	65	75	3/4	M16
1 1/4	32	135	17.5	64	42.2	63.5	2	98.4	as per requirement	4	5/8	70	85	3/4	M16
1 1/2	40	155	19.1	70	48.3	73	2	114.3	as per requirement	4	3/4	75	90	7/8	M20
2	50	165	20.7	84	60.3	92.1	2	127	as per requirement	8	5/8	75	90	3/4	M16
2 1/2	65	190	23.9	100	73	104.8	2	149.2	as per requirement	8	3/4	85	100	7/8	M20
3	80	210	27	117	88.9	127	2	168.3	as per requirement	8	3/4	90	110	7/8	M20
3 1/2	90	230	28.6	133	101.6	139.7	2	184.2	as per requirement	8	3/4	95	110	7/8	M20
4	100	255	30.2	146	114.3	157.2	2	200	as per requirement	8	3/4	95	115	7/8	M20
5	125	280	33.4	178	141.3	185.7	2	235	as per requirement	8	3/4	110	120	7/8	M20
6	150	320	35	206	168.3	215.9	2	269.9	as per requirement	12	3/4	110	120	7/8	M20
8	200	380	39.7	260	219.1	269.9	2	330.2	as per requirement	12	7/8	120	140	1	M24
10	250	445	46.1	321	273	323.8	2	387.4	as per requirement	16	1	140	160	1 1/8	M27
12	300	520	49.3	375	323.8	381	2	450.8	as per requirement	16	1 1/8	145	170	1 1/4	M30
14	350	585	52.4	425	355.6	412.8	2	514.4	as per requirement	20	1 1/8	160	180	1 1/4	M30
16	400	650	55.6	483	406.4	469.9	2	571.5	as per requirement	20	1 1/4	165	190	1 3/8	M33
18	450	710	58.8	533	457	533.4	2	628.6	as per requirement	24	1 1/4	170	195	1 3/8	M33
20	500	775	62	587	508	584.2	2	685.8	as per requirement	24	1 1/4	185	205	1 3/8	M33
24	600	915	68.3	702	610	692.2	2	812.8	as per requirement	24	1 1/2	205	230	1 5/8	M39